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单词 subtended
释义

subtendedadj.

Brit. /səbˈtɛndᵻd/, U.S. /səbˈtɛndəd/
Origin: Formed within English, by derivation. Etymons: subtend v., -ed suffix1.
Etymology: < subtend v. + -ed suffix1. In sense 2 probably after post-classical Latin subtensus, past participle of subtendere subtend v.
1. Stretched underneath; extended below. Chiefly figurative in later use.
ΘΚΠ
the world > space > relative position > low position > [adjective] > situated or placed under
underlaida1100
subjected?a1425
suppositivec1475
subject?1541
subjacent1598
subterjacent1598
underlying1611
subjunct1639
supposite1640
suppedaneous1646
subordinate1648
subdititious1657
substrated1663
succumbent1664
subtended1670
substrate1678
subadjacent1722
supposed1766
subtending1777
substrative1823
underset1845
infraposed1854
substant1883
underneath1894
underlappingc1900
1670 J. Evelyn Sylva (ed. 2) ix. 61 To clip, and let the leaves fall upon a subtended sheet.
1758 A. Monro Anat. Human Bones & Nerves (ed. 6) 206 A winding niche is made, which is comprehended in the great Foramen of a Skeleton, but is formed into a Hole by a subtended Ligament in the recent Subject.
1849 Mercersburg Rev. May 223 He has often been descried..squatted, in broad daylight, half way up some rugged cliff,..sketching off the subtended landscape.
1880 Proc. Royal Geogr. Soc. 2 730 Three large streams drain Makula's country and the subtended plateau.
1946 Amer. Jrnl. Sociol. 52 97/1 No account was taken of the class organization and the subtended attitudes in the plans for the incorporation of Puerto Rico into the American system.
2008 E. J. Sabiston Private Sphere to World Stage v. 142 The subtended benevolence of 'patriarchy' is only apparent, not real, and soon disappears in case of need.
2. Geometry and Optics. Of an angle: formed by lines drawn from the two ends of a line that cross at the point of the angle; (of a solid angle) formed by lines from the boundary of a surface that all intersect at the point of the angle.
ΘΚΠ
the world > relative properties > number > geometry > angle > [adjective] > other
sidelong1654
semirect1656
subtended1759
supplementary1809
explementary1830
reflectional1848
reflex1869
multi-angled1908
1759 tr. Lit. Mem. Germany & North II. 47 All circles, all sectors of a circle, whose subtended angles are mutually equal, are also mutually similar figures.
1824 W. H. Smyth Mem. Sicily iv. 145 The subtended angles carefully corrected.
1875 Proc. London Math. Soc. 6 43 Let dω denote the subtended solid angle.
1884 tr. H. Lotze Logic 248 The formula we are seeking must mention the subtended angle.
1919 Jrnl. Optical Soc. Amer. 2–3 86 The lengths of the divisions should be in a given ratio to the focal length of the object lens, in order that the scale should read the subtended angles truly.
1974 W. Weyhmann in R. V. Coleman Methods Exper. Physics XI. ix. 526 These heating rates do not include y-ray absorption, which will depend critically on the thickness and subtended solid angle of materials around the thermometer.
2010 W. S. Olsen Never Land 54 This equation only defines the subtended angle and does not affect the altitude value of 5400 miles obtained by a proportion.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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adj.1670
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